@article{10_4153_CJM_2008_023_0,
     author = {Breuer, Florian and Im, Bo-Hae},
     title = {Heegner {Points} and the {Rank} of {Elliptic} {Curves} over {Large} {Extensions} of {Global} {Fields}},
     journal = {Canadian journal of mathematics},
     pages = {481--490},
     year = {2008},
     volume = {60},
     number = {3},
     doi = {10.4153/CJM-2008-023-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2008-023-0/}
}